Tuesday, October 4, 2011

Learning Journal Post #2


Unlike the last chapter, I felt I learned a lot more in Chapters two and six. The Module started off explaining web browsers and web servers and how they function. From the comparison work I've done, I found out the web browser Opera has the ability to protect against Spyware and viruses. Honestly I didn't even consider using the Opera browser until now. Not just with Opera, but in comparison to all the other browsers Google, Chome, Firefox, etc, all of them can refresh a web page, store cookie files, turn on and off pop-up blockers, and even clear cache files. I had no idea of the advantages different types of web browsers held. Each website has it's own IP address with a list of numbers and periods signifying the port, and what main protocols the website is assigned.

As nice as this sounds, not all web browsers are safe from threats, and this is why we have Security among the internet. Shopping Online is a risky endeavor, but through proper procedures such as safeguarding our computers from identity theft, viruses and Phising, anyone can shop successfully online. It's best to have your computer updated with the latest protection, including anti-virus/spyware software to avoid any harmful threats. Now the Internet uses different protocols in order to transfer information to other people though the interweb, and it is a complicated process. TCP, or transmission control protocol is responsible for sending data packets into the system in order to get to the end point. And that's the receiver of for example, an e-mail you sent to your friend about a homework assignment.

This video here is a great informative video on how the process of transfer protocols works:






Five words I have learned:

Throughput- The amount of that can be transferred from one node to another node in a special amount of time.

Star topology- Connects each node to a central device, such as a hub or switch. A transmission passes from the originating node, through the hub, directly to the destination node.

Bridge- An intelligent connectivity device with one input port and one output port that connects two segments on the same LAN or two separate LANs.

Domain Name System (DNS)- Name servers that contain databases and the numeric IP addresses to which they correspond.

hslookup- Command prompt window to find the numeric IP address that corresponds to a domain name and vice versa.

My Wordle:

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